Question

The minerals required by the plants in very small quantities are called

• A. macronutrients
• B. manures
• C. fertilizers
• D. micronutrients

Answer 1

The correct option is D

micronutrients

The correct option is D

Explanation of the correct option:

1. The nutrients that are required in small or trace quantity by the plant are called micronutrients.
2. There are 7 essential micronutrients Boron, Zinc, Copper, Manganese, Iron, Chloride, and Molybdenum.
3. Lack of these essential micro nutrients in plants can cause deficiency syndrome like stunted growth, yellowing of leaves, rolling, or holes in the leaf, low yield, and crop failure.

Explanation of incorrect option:

Option A: Nutrients required by the plants in larger quantities are called macronutrients

Option B: Manures are an organic waste of plant and animal origin used as a source of nutrients for plants.

Option C: Fertilisers are any material of natural or synthetic origin that is applied to the soil to supply nutrients to plants.

Final answer: The minerals required in very small quantities are called micro nutrients.